In the climax of the series the Doctor faced his most famous foes, the Daleks, who are now led by the bizarre, self-appointed God of the Daleks.
The Doctor and Rose landed in London in World War II, where a horrible plague gives people gas masks they can never take off.
In Father's Day the Doctor and Rose caused problems in time, drawing out the Reapers who try to the solve things, by killing everyone!
The Doctor and Rose get into more trouble, this time from the fearsome looking Jagrafess and the mysterious Editor.
Exterminate! The Daleks came back in 2005 - check out the links on the right for a separate gallery of the Doctor's greatest enemy
A spaceship crash landed in episode 4, Aliens of London - containing a very strange occupant
The Slitheen - they look quite cute...
But they're really not that nice!
The ghostly gas creatures, The Gelth, from episode three.
The Moxx of Balhoon, from the second episode The End of the World.
The Face of Boe - who reappears in the second series.
The blue-skinned Steward from The End of the World
Fancy a facelift? Lady Cassandra is the last human in the year Five Billion.
One of the tree people from the Forest of Cheem.
Auton attack! The Doctor gets to grips with a living shop window dummy in the same story.
The Autons burst out of their shop windows and go on the offensive in the first episode, Rose.